Fast 2-Dimensional 4$times$4 Forward Integer Transform Implementation for H.264/AVC
Fast 2-Dimensional 4$times$4 Forward Integer Transform Implementation for H.264/AVC
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DOI：
10.1109/tcsii.2005.858748
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发表时间：
2006-03
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通讯作者：
Chih-Peng Fan
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作者：
Chih-Peng Fan
提出了一种新的实现H.264中4$×$4正向整数变换的二维快速算法。基于Kronecker乘积和直和的矩阵运算，提出的一维快速4$×$4正向整数变换可以通过矩阵分解得到高效的2-D 4$×$4正向整数变换。对于直接并行流水线结构，所提出的快速2-D 4$×$4正向整数变换设计不需要转置存储器。与最先进的方法相比，快速的2-D 4$乘以$4的正向整数变换需要更少的延迟延迟。该快速算法具有规则的模块化特性，适合于VLSI实现对H.264/高级视频编码(AVC)信号的实时处理。
In this paper, the novel two-dimensional (2-D) fast algorithm for realization of 4$times$4 forward integer transform in H.264 is proposed. Based on matrix operations with Kronecker product and direct sum, the efficient fast 2-D 4$times$4 forward integer transform can be derived from the proposed one-dimensional fast 4$times$4 forward integer transform through matrix decompositions. The proposed fast 2-D 4$times$4 forward integer transform design doesn't need transpose memory for direct parallel pipelined architecture. The fast 2-D 4$times$4 forward integer transform requires fewer latency delays than the state-of-the-art methods. With regular modularity, the proposed fast algorithm is suitable for VLSI implementation to achieve real-time H.264/advanced video coding (AVC) signal processing.